On Fri, 2020-04-17 at 17:36 +0800, Yanhu Cao wrote: > If we mount cephfs by the recover_session option, > __do_request can return directly until the client automatically reconnects. > > Signed-off-by: Yanhu Cao <gmayyyha@xxxxxxxxx> > --- > fs/ceph/mds_client.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c > index 486f91f9685b..e6cda256b136 100644 > --- a/fs/ceph/mds_client.c > +++ b/fs/ceph/mds_client.c > @@ -2708,6 +2708,12 @@ static void __do_request(struct ceph_mds_client *mdsc, > > put_request_session(req); > > + if (mdsc->fsc->blacklisted && > + ceph_test_mount_opt(mdsc->fsc, CLEANRECOVER)) { > + err = -EACCES; > + goto finish; > + } > + > mds = __choose_mds(mdsc, req, &random); > if (mds < 0 || > ceph_mdsmap_get_state(mdsc->mdsmap, mds) < CEPH_MDS_STATE_ACTIVE) { We do have an EBLACKLISTED error defined, which is the same as ESHUTDOWN. The read and write code can return that when the client is blacklisted. Same for cap handling (in __ceph_pool_perm_get. Should this return -EBLACKLISTED instead? -- Jeff Layton <jlayton@xxxxxxxxxx>